Cup sleeve



FIG. 1 is a perspective view of the cup sleeve;

FIG. 2 is a bottom view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a right view thereof;

FIG. 7 is a left view thereof; and,

FIG. 8 is another perspective view of the cup sleeve of FIG. 1 in use.

The dashed lines are included for the purpose of illustrating portions of the cup sleeve or environment that form no part of the claimed design. 

CLAIM The ornamental design for a cup sleeve, as shown and described. 